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TestMu AI

Score8.9 out of 10

220 Reviews and Ratings

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What is TestMu AI?

TestMu AI (Formerly LambdaTest) is a Full-Stack Quality Engineering platform that empowers teams to test intelligently and ship faster. Engineered for scale, it offers end-to-end AI agents to plan, author, execute, and analyze software quality. The platform enables testing of web, mobile, and enterprise applications at any scale across real devices, real browsers, and custom real-world environments.

Categories & Use Cases

Media

Screenshot of An automated screenshot.
Screenshot of Mobile-browser-testing
Screenshot of Automation testing on Lambdatest
Screenshot of Some of the available integrations.
Screenshot of Real-time testing
Screenshot of Responsive testing
Screenshot of Screenshot testing
Screenshot of Smart testing
Screenshot of Local host testing
Screenshot of LT Browser

1 / 10

Screenshot of An automated screenshot.

Who Buys & Uses TestMu AI

TestMu AI Reviews

What users are saying about TestMu AI.
View all TestMu AI reviews

Pros

  • Comprehensive cross-browser and cross-device compatibility testing.
  • Extensive availability of real and virtual devices for diverse environments.
  • Support for automation frameworks like Selenium and Appium.

Cons

  • Performance and speed issues, including lag during live sessions and slow device boot times.
  • Need for clearer and more up-to-date documentation.
  • Inconsistent availability of specific real devices during peak times.

Beyond Scripts Why TestMu AI Is the New Gold Standard for QA Automation in 2026

Verified User
Engineer in Quality Assurance (51-200 employees employees)

Use Cases and Deployment Scope

In our case, we use TestMu to test a mobile app on different real devices. This allows us to assess performance across the major brands of mobile devices. This is the main reason: functional testing is an important part of detecting problems or errors in a workflow that could impact our operations. By being able to test on different devices without location restrictions and leveraging both Android and iOS operating systems, we can ensure the proper functioning of our app.

Pros

  • app debugging
  • functional mobile test

Cons

  • at the moment all works for us

Return on Investment

  • less bugs on prod enviroment equal to Less impact on the development budget.
  • Shorter feedback cycle: Thanks to its HyperExecute technology, tests can run up to 70% faster than on traditional clouds.
  • Testing on real mobile devices ensures flawless performance in iOS or Android.

Usability

Other Software Used

Cursor, GitHub Copilot

TestMu AI Honest Review

Incentivized
Verified User
Engineer in Engineering (5001-10,000 employees employees)

Use Cases and Deployment Scope

We're using it mainly for regression testing, it's important for us to make sure our product is stable, even when new features or fixes has been implemented. Right now the scope is iOS and Android devices, sometimes in manual side we're using also iPad and Android tablets. Finally to test a webview we're using also browser in Linux OS

Pros

  • Logs for device
  • Web interface is clean
  • Pulling locators from native apps while I'm doing manual checking

Cons

  • Coverage of devices
  • Implement Roku
  • Implement AndroidTV
  • Availability of devices, sometimes in automated side my tests fail because it seems there aren't enough devices of e.g. Android Motorola, then I modified my tests to use mainly Samsung and Pixel

Return on Investment

  • Enhance confidence when facing releases
  • Get focused in manual tests for features to be released, as regression is covering all developed before
  • Time to market is less by the use of Automation

Usability

Alternatives Considered

BrowserStack

Other Software Used

Selenium, OpenJDK, Playwright

LambdaTest review for functional and responsive QA

Incentivized
Verified User
Employee in Quality Assurance (201-500 employees employees)

Use Cases and Deployment Scope

We used LambdaTest to functionally test and validate key aspects of our journal application: such as functionality of media viewing, polls, education workflows, account signup, subscription flows, ect. Along with the respective responsive and visual aspects of those flows. LambdaTest is especially important to us as a consistent environment for cross-browser and device testing in a remote QA team, as it enables us to test our website against a wide variety of mobile device sizes, OS, and browsers.

Pros

  • Variety of testing devices and browsers
  • Mapping of Desktop interaction to mobile touch
  • Fast spin-up and spin-down
  • Easy screenshotting and video recording feature
  • Ease of use as a tester

Cons

  • Latency and flakiness of some mobile touch, especially on iOS
  • Slower spin-up and spin-down for iOS devices
  • Not easy to zoom in to read small text

Return on Investment

  • Fast test execution

Usability

LambdaTest review

Incentivized
emma buttery
SDET in Quality Assurance at Direct ferries (51-200 employees employees)

Use Cases and Deployment Scope

Using LambdaTest to ensure our website and native app work with multiple devices as well as running our appium automation for the app on actual devices remotely. We had a trial for web automation (which we decided not to go ahead with at the moment) and also smart UI for more continuous testing on a storybook project.

Pros

  • UI is very nice
  • Customer support is very good when needed
  • works reliably

Cons

  • Some documentation can be confusing
  • Some documentation is also out of date

Return on Investment

  • N/A

Usability

Alternatives Considered

BrowserStack

Helpful for Daily Cross-Browser Testing

Incentivized
Ahsan NoorView profile
Head of Technology in Information Technology at Vintara International (1-10 employees employees)

Use Cases and Deployment Scope

We use LambdaTest for quick cross browser testing because our users come from different devices. It helps us catch UI bugs we usually miss locally.It basically solve the problem of inconsistent behavior across browsers.

Pros

  • UI comparisation
  • Automation
  • Cross browser testing

Cons

  • Pricing will be little bit cheaper
  • Real devices are little bit laggy
  • Session disconnect issue happened sometimes

Return on Investment

  • It saves about 10-20% of our time
  • Automation runs very well
  • It make user experience better as we have already ensure about the errors because of Lambdatest

Usability

Other Software Used

LinkedIn Jobs, Canva, Google Chrome

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